CN113695267B - Ink color sorting device and sorting method thereof - Google Patents
Ink color sorting device and sorting method thereof Download PDFInfo
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- CN113695267B CN113695267B CN202111003035.7A CN202111003035A CN113695267B CN 113695267 B CN113695267 B CN 113695267B CN 202111003035 A CN202111003035 A CN 202111003035A CN 113695267 B CN113695267 B CN 113695267B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
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Abstract
The invention discloses an ink color sorting device and a sorting method thereof, and belongs to the technical field of micro-space integrated packaging display. The device comprises a full spectrum light source, a light source and a light source, wherein the full spectrum light source is used for emitting full spectrum light required by ink color sorting test; the light collimating lens is used for converting full-spectrum light into collimated light and irradiating the collimated light on a display plane of the integrated packaging display module to be tested to form corresponding reflected light; the diffraction interference grating is used for carrying out diffraction interference blurring treatment on the reflected light to form a uniformly luminous blurring light spot; the CCD testing component is used for collecting the optical signal information of the fuzzified light spots, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level so as to output the ink color classification of the integrated packaging display module to be tested. According to the technical scheme, the technical problems that an ink color sorting mode of an existing micro-space integrated packaging display module is low in efficiency and poor in effect can be effectively solved.
Description
Technical Field
The invention relates to the technical field of micro-space integrated packaging display, in particular to an ink color sorting device and method.
Background
At present, in the manufacture of micro-space integrated packaging display products, a certain blackness of a screen is required, the contrast ratio is increased, and a display module is required to have better transmittance and increased brightness, so that the display module is generally manufactured in a semitransparent layer mode in a sealing layer. In order to ensure consistency of ink colors of products, a more perfect solution is provided for customers, the ink color sorting mode is generally adopted for color sorting, the direct sorting mode of human eyes is generally adopted for color sorting, the efficiency of the mode is very low, and all modules to be tested are required to be assembled for sorting, so that the problem of collision of the modules is easily caused in the process. Therefore, it has been proposed to use a tool such as a color difference meter to perform ink color separation, but the test value of an actual color difference meter is difficult to match with human eyes due to the uniformity of the appearance of the module manufactured at the present stage and the correspondence of the visual effect of human eyes, so that the ink color separation effect is poor by using the tool such as the color difference meter.
Disclosure of Invention
The invention mainly aims to provide an ink color sorting device and method, which aim to solve the technical problems of low efficiency and poor effect of an ink color sorting mode of the existing micro-space integrated packaging display module.
In order to achieve the above purpose, the invention provides an ink color sorting device, which comprises a full spectrum light source, a light collimating lens, a diffraction interference grating and a CCD test assembly, wherein the full spectrum light source is used for emitting full spectrum light required by ink color sorting test, and the range value of the full spectrum light is 380 nm-720 nm; the light collimating lens is positioned between the full spectrum light source and the integrated packaging display module to be tested, is used for converting the full spectrum light into collimated light and irradiates on a display plane of the integrated packaging display module to be tested to form corresponding reflected light; the diffraction interference grating is positioned between the integrated packaging display module to be tested and the CCD test assembly and is used for carrying out diffraction interference fuzzification on the reflected light before the reflected light irradiates the CCD test assembly to form a uniformly luminous fuzzification light spot; and the CCD testing component is used for collecting the optical signal information of the blurred light spot, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level so as to output the ink color classification of the to-be-tested integrated packaging display module.
Optionally, the full spectrum light source is an incandescent lamp or a high color rendering continuous spectrum LED lamp.
Optionally, the collimated light and the display plane are clamped to form a first included angle, and the angle range of the first included angle is 1-89 degrees.
Optionally, the incident plane of the diffraction interference grating and the display plane are clamped to form a second included angle, and the angle range of the second included angle is 1-89 degrees.
Optionally, the diffraction interference grating includes a polarized light layer, an optical diffraction layer and an optical interference light mixing layer, where the polarized light layer, the optical diffraction layer and the optical interference light mixing layer are sequentially stacked, the optical interference light mixing layer faces to a side where the CCD test component is located, and the polarized light layer faces to a side where the display plane is located.
Optionally, the optical diffraction layer is a transparent epoxy resin layer with nano silicon dioxide particles deposited on the surface, and the particle size of the nano silicon dioxide particles is 200 nm-900 nm.
Optionally, the outer surface of the polarized light layer is also plated with a 1/4 light wave antireflection film layer.
Optionally, the outer surface of the optical interference light mixing layer is further provided with an anti-total reflection array microstructure.
Optionally, the CCD testing component comprises a CCD sensor acquisition module, a gray value signal information conversion module and a gray classification module, wherein the CCD sensor acquisition module is used for acquiring the optical signal information of the blurred light spot; the gray value signal information conversion module is used for converting the optical signal information into gray value signal information; and the gray level classification module is used for classifying the gray level signal information according to gray levels so as to output the ink color classification of the to-be-tested integrated package display module.
In addition, in order to achieve the above object, the present invention also provides a sorting method of an ink color sorting device, which is applied to the above ink color sorting device, the method comprising the steps of: the full spectrum light emitted by the full spectrum light source is converted into collimated light through the light collimating lens and irradiates on a display plane of the to-be-tested integrated packaging display module to form corresponding reflected light; before the reflected light irradiates the CCD test assembly, the reflected light is subjected to diffraction interference fuzzification processing through the diffraction interference grating, so that a uniformly luminous fuzzification light spot is formed; and acquiring optical signal information of the blurred light spot through the CCD testing component, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level to output ink color classification of the to-be-tested integrated packaging display module.
The invention provides an ink color sorting device and a sorting method thereof. When the ink color of the integrated packaging display module to be tested is sorted, firstly, the full spectrum light emitted by the full spectrum light source is converted into collimated light through the light collimating lens, and the collimated light irradiates on the display plane of the integrated packaging display module to be tested to form corresponding reflected light. And then, carrying out diffraction interference blurring treatment on the reflected light before the reflected light irradiates the CCD test component through the diffraction interference grating to form a uniformly luminous blurring light spot. And finally, acquiring optical signal information of the blurred light spots through a CCD (charge coupled device) testing assembly, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level to output ink color classification of the integrated packaging display module to be tested. Therefore, the ink color sorting device provides full spectrum light required during testing through the full spectrum light source, can better distinguish different colors on the surface of the integrated packaging display module to be tested, and meanwhile, the diffraction interference fuzzification treatment is carried out through the diffraction interference grating and the classification effect which is highly matched with the observation of personnel is obtained by combining the gray level mode of the CCD test module, so that the testing time can be greatly saved, the deviation of different manual classification can be solved, the large-scale industrial standard manufacturing is facilitated, and the ink color sorting efficiency can be effectively improved. Therefore, the technical scheme can solve the technical problems of low efficiency and poor effect of the ink color sorting mode of the existing micro-space integrated packaging display module.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an ink color sorting device according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a diffraction interference grating of the ink color sorting apparatus shown in fig. 1.
FIG. 3 is a schematic diagram of a simulated optical path of the diffraction interference grating of FIG. 2 when a reflected light is incident.
Fig. 4 is a flow chart of a sorting method of the ink color sorting device according to the embodiment of the invention.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
As shown in fig. 1, an embodiment of the present invention provides an ink color sorting device 100, where the ink color sorting device 100 includes a full spectrum light source 110, a light collimating lens 120, a diffraction interference grating 130 and a CCD testing component 140, and the full spectrum light source 110 is mainly used for emitting full spectrum light required for ink color sorting test, and the range of the full spectrum light is 380 nm-720 nm. The light collimating lens 120 is located between the full spectrum light source 110 and the integrated package display module 200 to be tested, and is configured to convert full spectrum light into collimated light, and irradiate on a display plane of the integrated package display module 200 to be tested to form corresponding reflected light. The diffraction interference grating 130 is located between the integrated package display module 200 to be tested and the CCD testing component 140, and is mainly used for carrying out diffraction interference fuzzification on the reflected light before the reflected light irradiates the CCD testing component 140 to form a uniformly luminous fuzzification light spot; the CCD testing component 140 is mainly configured to collect optical signal information of the blurred spot, convert the optical signal information into gray value signal information, and classify the gray value signal information according to gray level, so as to output ink color classification of the integrated package display module 200 to be tested.
In this embodiment, as shown in fig. 1, the full spectrum light source 110 is preferably an incandescent lamp or a high color rendering continuous spectrum LED lamp, which are all visible continuous spectrum light sources, and the spectrum range covers 380nm to 720nm. In order to enable the collimated light to irradiate on the display plane to form good reflected light, the collimated light and the display plane are clamped to form a first included angle, the first included angle ranges from 1 degree to 89 degrees, and in order to enable the reflected light to perpendicularly enter the incidence plane of the diffraction interference grating 130, the incidence plane of the diffraction interference grating 130 and the display plane are clamped to form a second included angle, and the second included angle ranges from 1 degree to 89 degrees. Specifically, according to the law of reflection of light, if the reflected light is to be ensured to perpendicularly enter the incidence plane of the diffraction interference grating 130, the angle of the first included angle is ensured to be equal to the angle of the second included angle.
As shown in fig. 1 and 2, the diffraction interference grating 130 specifically includes a polarizing layer 131, an optical diffraction layer 132 and an optical interference light-mixing layer 133, where the polarizing layer 131, the optical diffraction layer 132 and the optical interference light-mixing layer 133 are sequentially stacked, the optical interference light-mixing layer 133 faces a side of the CCD testing device 140, and the polarizing layer 131 faces a side of the display plane. In this way, the reflected light enters the diffraction interference grating 130 from the side where the polarized light layer 131 is located, and at this time, as shown in fig. 3, the reflected light passes through the polarized light layer 131 first, becomes linearly polarized light, enters the optical diffraction layer 132, and generates a diffraction phenomenon in the optical diffraction layer 132 to form a divergent and blurred diffracted light. Then, the diffracted light continues to diverge and propagate, and in the optical interference light mixing layer 133, the light with an excessive diffraction angle interferes with each other, so as to weaken the influence of the light with a large angle, and finally, a uniformly luminous blurred spot is formed to irradiate on the CCD testing component 140. Specifically, as shown in fig. 2, the optical diffraction layer is a transparent epoxy resin layer with nano silica particles deposited on the surface, the particle size of the nano silica particles is 200 nm-900 nm, and the optical diffraction layer can form a better diffraction phenomenon on light. Thus, when the linearly polarized light enters the optical diffraction layer 132, the nano silica particles evaporated on the surface of the transparent epoxy resin layer make the light passing through the layer meet the nano silica particles to form a plurality of small optical conduction peaks, namely, the light is diffracted to form scattered and blurred diffracted light. The outer surface of the polarized light layer 131 is also plated with a 1/4 optical wave antireflection film 134, which can play a certain role in filtering. The outer surface of the optical interference light mixing layer 133 is further provided with an anti-total reflection array microstructure 135, so that the blurred light spot is emitted through the light emitting surface with the array microstructure 135, the total reflection problem is reduced, and finally, a uniformly luminous blurred light spot is formed on the CCD test assembly 140.
As shown in fig. 1, the CCD testing component 140 may specifically include a CCD sensor acquisition module, a gray value signal information conversion module, and a gray classification module, where the CCD sensor acquisition module is mainly used for acquiring the optical signal information of the blurred light spot. The gray value signal information conversion module is mainly used for converting the optical signal information into gray value signal information. The gray level classification module is mainly used for classifying gray value signal information according to gray levels so as to output ink color classification of the to-be-tested integrated package display module.
Example two
As shown in fig. 4, a second embodiment of the present invention further provides a sorting method of an ink color sorting device, which is applied to the ink color sorting device of the first embodiment, and includes the following steps:
step S110: and converting full spectrum light emitted by the full spectrum light source into collimated light through the light collimating lens, and irradiating the collimated light on a display plane of the integrated packaging display module to be tested to form corresponding reflected light.
Specifically, the sorting method of the ink color sorting device according to the embodiment of the present invention is applied to the ink color sorting device 1 of the above embodiment, as shown in fig. 1 to 3, the full spectrum light emitted 110 by the full spectrum light source is converted into collimated light by the light collimating lens 120, and the collimated light is irradiated on the display plane of the integrated package display module 200 to be tested, so as to form the corresponding reflected light.
Step S120: before the reflected light irradiates the CCD test assembly, the reflected light is subjected to diffraction interference blurring treatment through the diffraction interference grating, so that a uniformly luminous blurring light spot is formed.
Specifically, as shown in fig. 1 to 3, after the corresponding reflected light is formed through the above method steps, the reflected light may be subjected to diffraction interference blurring processing by the diffraction interference grating 130 before the reflected light is irradiated to the CCD testing device 140, so as to form a uniformly luminous blurred spot. The diffraction interference grating 130 specifically includes a polarized light layer 131, an optical diffraction layer 132 and an optical interference light mixing layer 133, where the polarized light layer 131, the optical diffraction layer 132 and the optical interference light mixing layer 133 are sequentially stacked, the optical interference light mixing layer 133 faces one side of the CCD testing component 140, and the polarized light layer 131 faces one side of the display plane. In this way, the reflected light enters the diffraction interference grating 130 from the side where the polarized light layer 131 is located, and at this time, as shown in fig. 3, the reflected light passes through the polarized light layer 131 first, becomes linearly polarized light, enters the optical diffraction layer 132, and generates a diffraction phenomenon in the optical diffraction layer 132 to form a divergent and blurred diffracted light. Then, the diffracted light continues to diverge and propagate, and in the optical interference light mixing layer 133, the light with an excessive diffraction angle interferes with each other, so as to weaken the influence of the light with a large angle, and finally, a uniformly luminous blurred spot is formed to irradiate on the CCD testing component 140.
Step S130: the CCD testing component is used for collecting the light signal information of the blurred light spot, converting the light signal information into gray value signal information, and classifying the gray value signal information according to gray level so as to output the ink color classification of the integrated packaging display module to be tested.
Specifically, as shown in fig. 1 to 3, after a uniformly luminous blurred spot is formed through the above method steps, the CCD testing device 140 may collect the optical signal information of the blurred spot, convert the optical signal information into gray-scale signal information, and classify the gray-scale signal information according to gray-scale level, so as to output the ink color gradation of the integrated package display module 200 to be tested. The method combines the gray level mode of the CCD testing component 140, can obtain the classification effect which is highly consistent with the observation of personnel, greatly saves the testing time, solves the deviation of different manual classification, is beneficial to large-scale industrial standard manufacturing, and can effectively improve the ink color sorting efficiency.
The ink color sorting device and the sorting method thereof provided by the embodiment of the invention comprise a full spectrum light source, a light collimating lens, a diffraction interference grating and a CCD test component. When the ink color of the integrated packaging display module to be tested is sorted, firstly, the full spectrum light emitted by the full spectrum light source is converted into collimated light through the light collimating lens, and the collimated light irradiates on the display plane of the integrated packaging display module to be tested to form corresponding reflected light. And then, carrying out diffraction interference blurring treatment on the reflected light before the reflected light irradiates the CCD test component through the diffraction interference grating to form a uniformly luminous blurring light spot. And finally, acquiring optical signal information of the blurred light spots through a CCD (charge coupled device) testing assembly, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level to output ink color classification of the integrated packaging display module to be tested. Therefore, the ink color sorting device provides full spectrum light required during testing through the full spectrum light source, can better distinguish different colors on the surface of the integrated packaging display module to be tested, and meanwhile, the diffraction interference fuzzification treatment is carried out through the diffraction interference grating and the classification effect which is highly matched with the observation of personnel is obtained by combining the gray level mode of the CCD test module, so that the testing time can be greatly saved, the deviation of different manual classification can be solved, the large-scale industrial standard manufacturing is facilitated, and the ink color sorting efficiency can be effectively improved. Therefore, the technical scheme can solve the technical problems of low efficiency and poor effect of the ink color sorting mode of the existing micro-space integrated packaging display module.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (9)
1. The ink color sorting device is characterized by comprising a full spectrum light source, a light collimating lens, a diffraction interference grating and a CCD test component, wherein,
the full spectrum light source is used for emitting full spectrum light required by ink color sorting test, and the range value of the full spectrum light is 380-720 nm;
the light collimating lens is positioned between the full spectrum light source and the integrated packaging display module to be tested, is used for converting the full spectrum light into collimated light and irradiates on a display plane of the integrated packaging display module to be tested to form corresponding reflected light;
the diffraction interference grating is positioned between the integrated packaging display module to be tested and the CCD test assembly and is used for carrying out diffraction interference fuzzification on the reflected light before the reflected light irradiates the CCD test assembly to form a uniformly luminous fuzzification light spot;
the CCD testing component is used for collecting the optical signal information of the blurred light spot, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level so as to output the ink color classification of the integrated packaging display module to be tested;
the CCD test assembly comprises a CCD sensor acquisition module, a gray value signal information conversion module and a gray classification module, wherein the CCD sensor acquisition module is used for acquiring the optical signal information of the blurred light spot; the gray value signal information conversion module is used for converting the optical signal information into gray value signal information; and the gray level classification module is used for classifying the gray level signal information according to gray levels so as to output the ink color classification of the to-be-tested integrated package display module.
2. The ink color sorting apparatus according to claim 1, wherein the full spectrum light source is an incandescent lamp or a high color rendering continuous spectrum LED lamp.
3. The ink color sorting apparatus according to claim 1, wherein the collimated light rays form a first included angle with the display plane, and the first included angle ranges from 1 ° to 89 °.
4. The ink color sorting apparatus according to claim 1, wherein the incidence plane of the diffraction interference grating and the display plane are disposed at a second angle, and the second angle is in the range of 1 ° to 89 °.
5. The ink color sorting device according to claim 1, wherein the diffraction interference grating includes a polarizing layer, an optical diffraction layer, and an optical interference light-mixing layer, the polarizing layer, the optical diffraction layer, and the optical interference light-mixing layer are sequentially stacked, the optical interference light-mixing layer faces a side where the CCD test element is located, and the polarizing layer faces a side where the display plane is located.
6. The ink color sorting apparatus according to claim 5, wherein the optical diffraction layer is a transparent epoxy resin layer having nano silica particles deposited on the surface thereof, and the nano silica particles have a particle diameter of 200nm to 900nm.
7. The ink color sorting device according to claim 5, wherein the outer surface of the polarized light layer is further coated with a 1/4 wave antireflection film layer.
8. The ink color sorting apparatus according to claim 5, wherein the outer surface of the optical interference light-mixing layer is further provided with an anti-total reflection array microstructure.
9. A sorting method of an ink sorting apparatus, applied to the ink sorting apparatus according to any one of claims 1 to 8, characterized by comprising the steps of:
the full spectrum light emitted by the full spectrum light source is converted into collimated light through the light collimating lens and irradiates on a display plane of the to-be-tested integrated packaging display module to form corresponding reflected light;
before the reflected light irradiates the CCD test assembly, the reflected light is subjected to diffraction interference fuzzification processing through the diffraction interference grating, so that a uniformly luminous fuzzification light spot is formed;
and acquiring optical signal information of the blurred light spot through the CCD testing component, converting the optical signal information into gray value signal information, and classifying the gray value signal information according to gray level to output ink color classification of the to-be-tested integrated packaging display module.
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